Method for detecting the position of a closure element in a water distribution mechanism

a technology of closure element and water distribution mechanism, which is applied in the direction of cleaning equipment, process and machine control, instruments, etc., can solve the problems of high complexity of the changeover device and the increase of the cost of producing the dishwasher, and achieve the effect of more economical

Active Publication Date: 2012-10-23
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]Because characteristics of the circulating pump have to be data-registered in any event for controlling it, the proposed device will necessitate no extra structural effort. Rather it relies on largely existing devices so that it will be more economical compared with an additional sensor system.

Problems solved by technology

What is disadvantageous about that embodiment variant is on the one hand the highly complex structure of the changeover device, because both the outer walls and additional elements inside the changeover device have to insure valve-body guiding.
That results overall in higher costs for producing the dishwasher.

Method used

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  • Method for detecting the position of a closure element in a water distribution mechanism
  • Method for detecting the position of a closure element in a water distribution mechanism
  • Method for detecting the position of a closure element in a water distribution mechanism

Examples

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Embodiment Construction

[0018]FIG. 1 is a schematic of a dishwasher 10 having a washing container 12 in which are located an upper basket 14 and a lower basket 16. Mounted rotatably below the upper basket 14 is an upper spraying system 18 and below the lower basket 16 is a lower spraying system 20 each in the form of a spraying arm. The upper spraying system 18 is supplied via a feeder line 22 and the lower spraying system via a feeder line 24 with rinsing fluid. Located below the washing container 12 is a sump 26 having a filter insert 28 that is linked via a fluid line 29 to a circulating pump 30. The circulating pump 30 is connected via a fluid line 31 to a water diverter 32. It has a covering surface 39 having two openings 34, 36, with the opening 34 being linked to the feeder line 22 and the opening 36 to the feeder line 24.

[0019]Mounted rotatably inside the cylindrical water diverter 32 parallel to the covering surface 39 is a discoid closure element 38. It is arranged in a rotationally fixed manner ...

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Abstract

A method and a device are provided for detecting the position of a closure element of a movement reversal device in a dishwasher. The device determines the position of a closure element via a comparison of a value corresponding to a predefined reference position of the closure element with a signal value of a circulation pump of the dishwasher.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a method for detecting the position of a closure element in a changeover device of a dishwasher. The term “water diverter” can be employed synonymously with the term “changeover device”. The function of the changeover device is to distribute a rinsing fluid among various spraying systems or spraying levels inside a washing container of the dishwasher. A circulating pump is used to transport the rinsing fluid. A drive device driven by a control device changes the position of the closure element. The invention relates further to a device for detecting the closure element's position.[0002]A changeover device of said type is known from DE 198 57 101 B4. The closure element's position is detected via a rotation-speed sensor on a circulating pump located in front of the changeover device. Said sensor is linked to an electronic control device that ascertains the valve body's position by way of the pump's rotation speed. Use ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G05D11/00
CPCA47L15/0049A47L15/4221A47L15/4225A47L2401/08
Inventor HEISELE, BERNDOBLINGER, ANTONREITER, ANDREASROSENBAUER, MICHAELSEMERAD, DAVIDWOLF, CHRISTIAN
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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